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Visagie JL, Aruwajoye GS, van der Sluis R. Pharmacokinetics of aspirin: evaluating shortcomings in the literature. Expert Opin Drug Metab Toxicol 2024:1-14. [PMID: 39092921 DOI: 10.1080/17425255.2024.2386368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 07/26/2024] [Indexed: 08/04/2024]
Abstract
INTRODUCTION Aspirin is known for its therapeutic benefits in preventing strokes and relieving pain. However, it is toxic to some individuals, and the biological mechanisms causing toxicity are unknown. Limited literature is available on the role of glycine conjugation as the principal pathway in aspirin detoxification. Previous studies have quantified this two-step enzyme reaction as a singular enzymatic process. Consequently, the individual contributions of these enzymes to the kinetics remain unclear. AREAS COVERED This review summarized the available information on the pharmacokinetics and detoxification of aspirin by the glycine conjugation pathway. Literature searches were conducted using Google Scholar and the academic journal databases accessible through the North-West University Library. Furthermore, the factors affecting interindividual variation in aspirin metabolism and what is known regarding aspirin toxicity were discussed. EXPERT OPINION The greatest drawback in understanding the pharmacokinetics of aspirin is the limited information available on the substrate preference of the xenobiotic ligase (ACSM) responsible for activating salicylate to salicyl-CoA. Furthermore, previous pharmacokinetic studies did not consider the contribution of other substrates from the diet or genetic variants, to the detoxification rate of glycine conjugation. Impaired glycine conjugation might contribute to adverse health effects seen in Reye's syndrome and cancer.
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Affiliation(s)
- Jacobus Lukas Visagie
- Focus Area for Human Metabolomics, North-West University, Potchefstroom, South Africa
| | | | - Rencia van der Sluis
- Focus Area for Human Metabolomics, North-West University, Potchefstroom, South Africa
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2
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Kontoghiorghes GJ. The Puzzle of Aspirin and Iron Deficiency: The Vital Missing Link of the Iron-Chelating Metabolites. Int J Mol Sci 2024; 25:5150. [PMID: 38791185 PMCID: PMC11121054 DOI: 10.3390/ijms25105150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 04/22/2024] [Accepted: 05/06/2024] [Indexed: 05/26/2024] Open
Abstract
Acetylsalicylic acid or aspirin is the most commonly used drug in the world and is taken daily by millions of people. There is increasing evidence that chronic administration of low-dose aspirin of about 75-100 mg/day can cause iron deficiency anaemia (IDA) in the absence of major gastric bleeding; this is found in a large number of about 20% otherwise healthy elderly (>65 years) individuals. The mechanisms of the cause of IDA in this category of individuals are still largely unknown. Evidence is presented suggesting that a likely cause of IDA in this category of aspirin users is the chelation activity and increased excretion of iron caused by aspirin chelating metabolites (ACMs). It is estimated that 90% of oral aspirin is metabolized into about 70% of the ACMs salicyluric acid, salicylic acid, 2,5-dihydroxybenzoic acid, and 2,3-dihydroxybenzoic acid. All ACMs have a high affinity for binding iron and ability to mobilize iron from different iron pools, causing an overall net increase in iron excretion and altering iron balance. Interestingly, 2,3-dihydroxybenzoic acid has been previously tested in iron-loaded thalassaemia patients, leading to substantial increases in iron excretion. The daily administration of low-dose aspirin for long-term periods is likely to enhance the overall iron excretion in small increments each time due to the combined iron mobilization effect of the ACM. In particular, IDA is likely to occur mainly in populations such as elderly vegetarian adults with meals low in iron content. Furthermore, IDA may be exacerbated by the combinations of ACM with other dietary components, which can prevent iron absorption and enhance iron excretion. Overall, aspirin is acting as a chelating pro-drug similar to dexrazoxane, and the ACM as combination chelation therapy. Iron balance, pharmacological, and other studies on the interaction of iron and aspirin, as well as ACM, are likely to shed more light on the mechanism of IDA. Similar mechanisms of iron chelation through ACM may also be implicated in patient improvements observed in cancer, neurodegenerative, and other disease categories when treated long-term with daily aspirin. In particular, the role of aspirin and ACM in iron metabolism and free radical pathology includes ferroptosis, and may identify other missing links in the therapeutic effects of aspirin in many more diseases. It is suggested that aspirin is the first non-chelating drug described to cause IDA through its ACM metabolites. The therapeutic, pharmacological, toxicological and other implications of aspirin are incomplete without taking into consideration the iron binding and other effects of the ACM.
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Affiliation(s)
- George J Kontoghiorghes
- Postgraduate Research Institute of Science, Technology, Environment and Medicine, Limassol 3021, Cyprus
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3
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Ning G, Sun Y, Ling J, Chen J, He J. BDN-DDI: A bilinear dual-view representation learning framework for drug-drug interaction prediction. Comput Biol Med 2023; 165:107340. [PMID: 37603959 DOI: 10.1016/j.compbiomed.2023.107340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/23/2023] [Accepted: 08/07/2023] [Indexed: 08/23/2023]
Abstract
Drug-drug interactions (DDIs) refer to the potential effects of two or more drugs interacting with each other when used simultaneously, which may lead to adverse reactions or reduced drug efficacy. Accurate prediction of DDIs is a significant concern in recent years. Currently, the drug chemical substructure-based learning method has substantially improved DDIs prediction. However, we notice that most related works ignore the detailed interaction among atoms when extracting the substructure information of drugs. This problem results in incomplete information extraction and may limit the model's predictive ability. In this work, we proposed a novel framework named BDN-DDI (a bilinear dual-view representation learning framework for drug-drug interaction prediction) to infer potential DDIs. In the proposed framework, the encoder consists of six stacked BDN blocks, each of which extracts the feature representation of drug molecules through a bilinear representation extraction layer. The extracted feature is then used to learn embeddings of drug substructures from the single drug learning layer (intra-layer) and the drug-pair learning layer (inter-layer). Finally, the learned embeddings are fed into a decoder to predict DDI events. Based on our experiments, BDN-DDI has an AUROC value of over 99% for the warm-start task. Additionally, it outperformed the state-of-the-art methods by an average of 3.4% for the cold-start tasks. Finally, our method's effectiveness is further validated by visualizing several case studies.
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Affiliation(s)
- Guoquan Ning
- School of Computer Science and Technology, Guangdong University of Technology, Guangzhou 510006, China
| | - Yuping Sun
- School of Computer Science and Technology, Guangdong University of Technology, Guangzhou 510006, China.
| | - Jie Ling
- School of Computer Science and Technology, Guangdong University of Technology, Guangzhou 510006, China
| | - Jijia Chen
- School of Computer Science and Technology, Guangdong University of Technology, Guangzhou 510006, China
| | - Jiaxi He
- School of Computer Science and Technology, Guangdong University of Technology, Guangzhou 510006, China
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4
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Ebert KE, Griem P, Weiss T, Brüning T, Hayen H, Koch HM, Bury D. Diastereoselective metabolism of homomenthyl salicylate (homosalate): Identification of relevant human exposure biomarkers. ENVIRONMENT INTERNATIONAL 2022; 170:107637. [PMID: 36423396 DOI: 10.1016/j.envint.2022.107637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/28/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Homosalate (HMS) is a salicylate UV filter broadly used in sunscreens and personal care products. The aim of this study was the collection of human toxicokinetic data on HMS as a tool for risk assessment. For this purpose, metabolism and urinary excretion after a single oral HMS dose (98.2-149.1 µg (kg body weight)-1) were investigated in four volunteers (two male, two female). As commercial products generally contain a mixture of cis- and trans-HMS, both cis-rich and trans-rich isomer mixtures were studied to investigate possible differences in metabolism. Initial metabolite screening tentatively identified six oxidative metabolite subgroups, of which hydroxylated and carboxylic acid metabolites were studied in more detail. Unchanged parent HMS and the previously identified HMS metabolites 5-((2-hydroxybenzoyl)oxy)-3,3-dimethylcyclohexane-1-carboxylic acid (HMS-CA) and 3-hydroxy-3,5,5-trimethylcyclohexyl 2-hydroxybenzoate (3OH-HMS), respectively, were quantified separately as cis- and trans-isomers via authentic standards by isotope dilution analysis. In addition, further alkyl-hydroxylated and carboxylic acid metabolites were investigated semi-quantitatively. Peak concentrations in urine were reached 1.5-6.3 h post-dose and more than 80 % of each of the quantitatively investigated metabolites (and at least 70 % of the semi-quantitatively investigated metabolites) was excreted within the first 24 h. Plasma and urine data indicated that oral bioavailability of cis-HMS was one order of magnitude below that of trans-HMS. Furthermore, the mean total urinary excretion fraction (Fue) for the metabolites derived from trans-HMS (6.4 %) was two orders of magnitude higher than for the metabolites derived from cis-HMS (0.045 %). Our data proves diastereoselectivity in toxicokinetics of cis- and trans-HMS, emphasizing the necessity to address isomer ratios in future studies including HMS exposure and risk assessments.
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Affiliation(s)
- Katharina E Ebert
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany.
| | - Peter Griem
- Symrise AG, Mühlenfeldstraße 1, 37603 Holzminden, Germany.
| | - Tobias Weiss
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany.
| | - Thomas Brüning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany.
| | - Heiko Hayen
- Institute of Inorganic and Analytical Chemistry, University of Münster, Corrensstrasse 48, 48149 Münster, Germany.
| | - Holger M Koch
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany.
| | - Daniel Bury
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr University Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany.
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Macías Y, García-Menaya JM, Martí M, Cordobés C, Jurado-Escobar R, Cornejo-García JA, Torres MJ, Blanca-López N, Canto G, Blanca M, Laguna JJ, Bartra J, Rosado A, Fernández J, García-Martín E, Agúndez JAG. Lack of Major Involvement of Common CYP2C Gene Polymorphisms in the Risk of Developing Cross-Hypersensitivity to NSAIDs. Front Pharmacol 2021; 12:648262. [PMID: 34621165 PMCID: PMC8490926 DOI: 10.3389/fphar.2021.648262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 09/06/2021] [Indexed: 11/13/2022] Open
Abstract
Cross-hypersensitivity to non-steroidal anti-inflammatory drugs (NSAIDs) is a relatively common, non-allergic, adverse drug event triggered by two or more chemically unrelated NSAIDs. Current evidence point to COX-1 inhibition as one of the main factors in its etiopathogenesis. Evidence also suggests that the risk is dose-dependent. Therefore it could be speculated that individuals with impaired NSAID biodisposition might be at increased risk of developing cross-hypersensitivity to NSAIDs. We analyzed common functional gene variants for CYP2C8, CYP2C9, and CYP2C19 in a large cohort composed of 499 patients with cross-hypersensitivity to NSAIDs and 624 healthy individuals who tolerated NSAIDs. Patients were analyzed as a whole group and subdivided in three groups according to the main enzymes involved in the metabolism of the culprit drugs as follows: CYP2C9, aceclofenac, indomethacin, naproxen, piroxicam, meloxicam, lornoxicam, and celecoxib; CYP2C8 plus CYP2C9, ibuprofen and diclofenac; CYP2C19 plus CYP2C9, metamizole. Genotype calls ranged from 94 to 99%. No statistically significant differences between patients and controls were identified in this study, either for allele frequencies, diplotypes, or inferred phenotypes. After patient stratification according to the enzymes involved in the metabolism of the culprit drugs, or according to the clinical presentation of the hypersensitivity reaction, we identified weak significant associations of a lower frequency (as compared to that of control subjects) of CYP2C8*3/*3 genotypes in patients receiving NSAIDs that are predominantly CYP2C9 substrates, and in patients with NSAIDs-exacerbated cutaneous disease. However, these associations lost significance after False Discovery Rate correction for multiple comparisons. Taking together these findings and the statistical power of this cohort, we conclude that there is no evidence of a major implication of the major functional CYP2C polymorphisms analyzed in this study and the risk of developing cross-hypersensitivity to NSAIDs. This argues against the hypothesis of a dose-dependent COX-1 inhibition as the main underlying mechanism for this adverse drug event and suggests that pre-emptive genotyping aiming at drug selection should have a low practical utility for cross-hypersensitivity to NSAIDs.
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Affiliation(s)
- Yolanda Macías
- University Institute of Molecular Pathology Biomarkers, UEx, Cáceres, Spain.,ARADyAL Instituto de Salud Carlos III, Cáceres, Spain
| | - Jesús M García-Menaya
- Allergy Service, Badajoz University Hospital, Badajoz, Spain.,ARADyAL Instituto de Salud Carlos III, Badajoz, Spain
| | - Manuel Martí
- University Institute of Molecular Pathology Biomarkers, UEx, Cáceres, Spain.,ARADyAL Instituto de Salud Carlos III, Cáceres, Spain
| | - Concepción Cordobés
- Allergy Service, Badajoz University Hospital, Badajoz, Spain.,ARADyAL Instituto de Salud Carlos III, Badajoz, Spain
| | - Raquel Jurado-Escobar
- Research Laboratory, IBIMA, Regional University Hospital of Málaga, UMA, Málaga, Spain.,ARADyAL Instituto de Salud Carlos III, Málaga, Spain
| | - José A Cornejo-García
- Research Laboratory, IBIMA, Regional University Hospital of Málaga, UMA, Málaga, Spain.,ARADyAL Instituto de Salud Carlos III, Málaga, Spain
| | - María J Torres
- ARADyAL Instituto de Salud Carlos III, Málaga, Spain.,Allergy Unit, IBIMA, Regional University Hospital of Málaga, UMA, Málaga, Spain
| | - Natalia Blanca-López
- Allergy Service, Infanta Leonor University Hospital, Madrid, Spain.,ARADyAL Instituto de Salud Carlos III, Madrid, Spain
| | - Gabriela Canto
- Allergy Service, Infanta Leonor University Hospital, Madrid, Spain.,ARADyAL Instituto de Salud Carlos III, Madrid, Spain
| | - Miguel Blanca
- Allergy Service, Infanta Leonor University Hospital, Madrid, Spain.,ARADyAL Instituto de Salud Carlos III, Madrid, Spain
| | - José J Laguna
- ARADyAL Instituto de Salud Carlos III, Madrid, Spain.,Allergy Unit and Allergy-Anaesthesia Unit, Hospital Central Cruz Roja, Faculty of Medicine, Alfonso X El Sabio University, Madrid, Spain
| | - Joan Bartra
- Allergy Section, Pneumology Department, Hospital Clinic, ARADyAL, Universitat de Barcelona, Barcelona, Spain.,ARADyAL Instituto de Salud Carlos III, Barcelona, Spain
| | - Ana Rosado
- Allergy Service, Alcorcón Hospital, Madrid, Spain
| | - Javier Fernández
- Allergy Unit, Regional University Hospital, Alicante, Spain.,ARADyAL Instituto de Salud Carlos III, Alicante, Spain
| | - Elena García-Martín
- University Institute of Molecular Pathology Biomarkers, UEx, Cáceres, Spain.,ARADyAL Instituto de Salud Carlos III, Cáceres, Spain
| | - José A G Agúndez
- University Institute of Molecular Pathology Biomarkers, UEx, Cáceres, Spain.,ARADyAL Instituto de Salud Carlos III, Cáceres, Spain
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6
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Truong VL, Jun M, Jeong WS. Phytochemical and Over-The-Counter Drug Interactions: Involvement of Phase I and II Drug-Metabolizing Enzymes and Phase III Transporters. J Med Food 2021; 24:786-805. [PMID: 34382862 DOI: 10.1089/jmf.2021.k.0003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Consumption of plant-derived natural products and over-the-counter (OTC) drugs is increasing on a global scale, and studies of phytochemical-OTC drug interactions are becoming more significant. The intake of dietary plants and herbs rich in phytochemicals may affect drug-metabolizing enzymes (DMEs) and transporters. These effects may lead to alterations in pharmacokinetics and pharmacodynamics of OTC drugs when concomitantly administered. Some phytochemical-drug interactions benefit patients through enhanced efficacy, but many interactions cause adverse effects. This review discusses possible mechanisms of phytochemical-OTC drug interactions mediated by phase I and II DMEs and phase III transporters. In addition, current information is summarized for interactions between phytochemicals derived from fruits, vegetables, and herbs and OTC drugs, and counseling is provided on appropriate and safe use of OTC drugs.
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Affiliation(s)
- Van-Long Truong
- Food and Bio-Industry Research Institute, School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Korea
| | - Mira Jun
- Brain Busan 21 Plus Program, Department of Food Science and Nutrition, Graduate School, Center for Silver-Targeted Biomaterials, Dong-A University, Busan, Korea
| | - Woo-Sik Jeong
- Food and Bio-Industry Research Institute, School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Korea
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7
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Kupriyanova G, Rafalskiy V, Mershiev I, Moiseeva E. NMR spectroscopy reveals acetylsalicylic acid metabolites in the human urine for drug compliance monitoring. PLoS One 2021; 16:e0247102. [PMID: 33684129 PMCID: PMC7939264 DOI: 10.1371/journal.pone.0247102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 02/02/2021] [Indexed: 11/18/2022] Open
Abstract
Cardiovascular disease is the leading cause of morbidity and mortality worldwide. Long-term use of antiplatelet drugs is a well-studied therapy for the prevention of cardiovascular death. Ensuring compliance with lifelong administration of antiplatelet drugs, in particular acetylsalicylic acid, is one of the challenges of such therapy. The aim of this study is to explore the possibility of using nuclear magnetic resonance spectroscopy to identify acetylsalicylic acid metabolites in urine and to search for characteristic markers that could be used to detect patient compliance with long-term acetylsalicylic acid treatment.
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Affiliation(s)
| | | | - Ivan Mershiev
- Immanuel Kant Baltic Federal University, Kaliningrad, Russia
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9
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Sankaranarayanan R, Kumar DR, Altinoz MA, Bhat GJ. Mechanisms of Colorectal Cancer Prevention by Aspirin-A Literature Review and Perspective on the Role of COX-Dependent and -Independent Pathways. Int J Mol Sci 2020; 21:ijms21239018. [PMID: 33260951 PMCID: PMC7729916 DOI: 10.3390/ijms21239018] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 12/11/2022] Open
Abstract
Aspirin, synthesized and marketed in 1897 by Bayer, is one of the most widely used drugs in the world. It has a well-recognized role in decreasing inflammation, pain and fever, and in the prevention of thrombotic cardiovascular diseases. Its anti-inflammatory and cardio-protective actions have been well studied and occur through inhibition of cyclooxygenases (COX). Interestingly, a vast amount of epidemiological, preclinical and clinical studies have revealed aspirin as a promising chemopreventive agent, particularly against colorectal cancers (CRC); however, the primary mechanism by which it decreases the occurrences of CRC has still not been established. Numerous mechanisms have been proposed for aspirin’s chemopreventive properties among which the inhibition of COX enzymes has been widely discussed. Despite the wide attention COX-inhibition has received as the most probable mechanism of cancer prevention by aspirin, it is clear that aspirin targets many other proteins and pathways, suggesting that these extra-COX targets may also be equally important in preventing CRC. In this review, we discuss the COX-dependent and -independent pathways described in literature for aspirin’s anti-cancer effects and highlight the strengths and limitations of the proposed mechanisms. Additionally, we emphasize the potential role of the metabolites of aspirin and salicylic acid (generated in the gut through microbial biotransformation) in contributing to aspirin’s chemopreventive actions. We suggest that the preferential chemopreventive effect of aspirin against CRC may be related to direct exposure of aspirin/salicylic acid or its metabolites to the colorectal tissues. Future investigations should shed light on the role of aspirin, its metabolites and the role of the gut microbiota in cancer prevention against CRC.
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Affiliation(s)
- Ranjini Sankaranarayanan
- Department of Pharmaceutical Sciences and Translational Cancer Research Center, College of Pharmacy and Allied Health Professions, South Dakota State University, Brookings, SD 57007, USA;
| | - D. Ramesh Kumar
- Department of Entomology, University of Kentucky, Lexington, KY 40506, USA;
| | - Meric A. Altinoz
- Department of Biochemistry, Acibadem M.A.A. University, Istanbul, Turkey;
| | - G. Jayarama Bhat
- Department of Pharmaceutical Sciences and Translational Cancer Research Center, College of Pharmacy and Allied Health Professions, South Dakota State University, Brookings, SD 57007, USA;
- Correspondence: ; Tel.: +1-605-688-6894
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10
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Khan H, Gallant RC, Zamzam A, Jain S, Afxentiou S, Syed M, Kroezen Z, Shanmuganathan M, Britz-McKibbin P, Rand ML, Ni H, Al-Omran M, Qadura M. Personalization of Aspirin Therapy Ex Vivo in Patients with Atherosclerosis Using Light Transmission Aggregometry. Diagnostics (Basel) 2020; 10:diagnostics10110871. [PMID: 33114560 PMCID: PMC7693608 DOI: 10.3390/diagnostics10110871] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 12/23/2022] Open
Abstract
Acetylsalicylic acid (ASA), also known as aspirin, appears to be ineffective in inhibiting platelet aggregation in 20-30% of patients. Light transmission aggregometry (LTA) is a gold standard platelet function assay. In this pilot study, we used LTA to personalize ASA therapy ex vivo in atherosclerotic patients. Patients were recruited who were on 81 mg ASA, presenting to ambulatory clinics at St. Michael's Hospital (n = 64), with evidence of atherosclerotic disease defined as clinical symptoms and diagnostic findings indicative of symptomatic peripheral arterial disease (PAD), with an ankle brachial index (ABI) of <0.9 (n = 52) or had diagnostic features of asymptomatic carotid arterial stenosis (CAS), with >50% stenosis of internal carotid artery on duplex ultrasound (n = 12). ASA compliance was assessed via multisegmented injection-capillary electrophoresis-mass spectrometry based on measuring the predominant urinary ASA metabolite, salicyluric acid. LTA with arachidonic acid was used to test for ASA sensitivity. Escalating ASA dosages of 162 mg and 325 mg were investigated ex vivo for ASA dose personalization. Of the 64 atherosclerotic patients recruited, 8 patients (13%) were non-compliant with ASA. Of ASA compliant patients (n = 56), 9 patients (14%) were non-sensitive to their 81 mg ASA dosage. Personalizing ASA therapy in 81 mg ASA non-sensitive patients with escalating dosages of ASA demonstrated that 6 patients became sensitive to a dosage equivalent to 162 mg ASA and 3 patients became sensitive to a dosage equivalent to 325 mg ASA. We were able to personalize ASA dosage ex vivo in all ASA non-sensitive patients with escalating dosages of ASA within 1 h of testing.
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Affiliation(s)
- Hamzah Khan
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
| | - Reid C. Gallant
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (R.C.G.); (H.N.)
| | - Abdelrahman Zamzam
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
| | - Shubha Jain
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
| | - Sherri Afxentiou
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
| | - Muzammil Syed
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
| | - Zachary Kroezen
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4M1, Canada; (Z.K.); (M.S.); (P.B.-M.)
| | - Meera Shanmuganathan
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4M1, Canada; (Z.K.); (M.S.); (P.B.-M.)
| | - Philip Britz-McKibbin
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4M1, Canada; (Z.K.); (M.S.); (P.B.-M.)
| | - Margaret L. Rand
- Department of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON M4B 1B3, Canada;
- Departments of Biochemistry and Pediatrics, University of Toronto, Toronto, ON M4B 1B3, Canada
- Translational Medicine, Research Institute, Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, ON M4B 1B3, Canada
| | - Heyu Ni
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (R.C.G.); (H.N.)
- Department of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON M4B 1B3, Canada;
| | - Mohammed Al-Omran
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (R.C.G.); (H.N.)
- Department of Surgery, University of Toronto, Toronto, ON M4B 1B3, Canada
| | - Mohammad Qadura
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (H.K.); (A.Z.); (S.J.); (S.A.); (M.S.); (M.A.-O.)
- Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, ON M4B 1B3, Canada; (R.C.G.); (H.N.)
- Department of Surgery, University of Toronto, Toronto, ON M4B 1B3, Canada
- Correspondence: ; Tel.: +1-416-864-6047
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11
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Dionísio R, Daniel D, Arenas F, Campos JC, Costa PC, Nunes B, Correia AT. Effects of pH on salicylic acid toxicity in terms of biomarkers determined in the marine gastropod Gibbula umbilicalis. MARINE ENVIRONMENTAL RESEARCH 2020; 158:104995. [PMID: 32501266 DOI: 10.1016/j.marenvres.2020.104995] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/10/2020] [Accepted: 04/15/2020] [Indexed: 06/11/2023]
Abstract
Alterations of the physical-chemical properties of the oceans due to anthropogenic activities are, at present, one of the most concerning environmental issues studied by researchers. One of these issues is ocean acidification, mainly caused by overproduction and release of carbon dioxide (CO2) from anthropogenic sources. Another component of environmental degradation is related to the production and release of potential toxic compounds, namely active pharmaceutical ingredients, into the aquatic environment that, combined with oceanic acidification, can cause unpredictable and never before considered deleterious effects on non-target marine organisms. Regarding this issue, the hereby study used predictions of future ocean acidification to simulate realistic scenarios of environmental exposure to a common therapeutic drug, salicylic acid (SA), in the marine gastropod Gibbula umbilicalis under different pH values. This species was exposed to a range of pH values (8.2, 7.9 and 7.6), and to already reported environmentally realistic concentrations (5, 25 and 125 μg/L) of SA. To evaluate the effects of these environmental stressors, key physiological biomarkers (GSTs, CAT, TBARS, AChE and COX) and shell hardness (SH) were quantified. Results from the present study showed that CAT and GSTs activities were enhanced by SA under water acidification; increased lipid peroxidation was also observed in organisms exposed to SA in more acidic media. In addition, the hereby study demonstrated the neurotoxic effects of SA through the inhibition of AChE. Effects were also observed in terms of COX activity, showing that SA absorption may be affected by water acidification. In terms of SH, the obtained data suggest that SA may alter the physical integrity of shells of exposed organisms. It is possible to conclude that the combination of seawater acidification and exposure to toxic xenobiotics (namely to the drug SA) may be strenuous to marine communities, making aquatic biota more susceptible to xenobiotics, and consequently endangering marine life in an unpredictable extent.
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Affiliation(s)
- Ricardo Dionísio
- Departamento de Biologia da Universidade de Aveiro (DBIO-UA), Campus de Santiago, 3810-193 Aveiro, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - David Daniel
- Departamento de Biologia da Universidade de Aveiro (DBIO-UA), Campus de Santiago, 3810-193 Aveiro, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - Francisco Arenas
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - João C Campos
- Unidade de Ciências Biomoleculares Aplicadas (UCIBIO-REQUIMTE), MedTech - Laboratório de Tecnologia Farmacêutica, Departamento de Ciências Farmacêuticas, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Paulo C Costa
- Unidade de Ciências Biomoleculares Aplicadas (UCIBIO-REQUIMTE), MedTech - Laboratório de Tecnologia Farmacêutica, Departamento de Ciências Farmacêuticas, Faculdade de Farmácia, Universidade do Porto, Rua Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Bruno Nunes
- Departamento de Biologia da Universidade de Aveiro (DBIO-UA), Campus de Santiago, 3810-193 Aveiro, Portugal; Centro de Estudos do Ambiente e do Mar (CESAM), Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal.
| | - Alberto Teodorico Correia
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208, Matosinhos, Portugal; Faculdade de Ciências da Saúde da Universidade Fernando Pessoa (FCS/UFP), Rua Carlos da Maia 296, 4200-150, Porto, Portugal
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12
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Sankaranarayanan R, Kumar DR, Patel J, Bhat GJ. Do Aspirin and Flavonoids Prevent Cancer through a Common Mechanism Involving Hydroxybenzoic Acids?-The Metabolite Hypothesis. Molecules 2020; 25:molecules25092243. [PMID: 32397626 PMCID: PMC7249170 DOI: 10.3390/molecules25092243] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/02/2020] [Accepted: 05/09/2020] [Indexed: 12/12/2022] Open
Abstract
Despite decades of research to elucidate the cancer preventive mechanisms of aspirin and flavonoids, a consensus has not been reached on their specific modes of action. This inability to accurately pinpoint the mechanism involved is due to the failure to differentiate the primary targets from its associated downstream responses. This review is written in the context of the recent findings on the potential pathways involved in the prevention of colorectal cancers (CRC) by aspirin and flavonoids. Recent reports have demonstrated that the aspirin metabolites 2,3-dihydroxybenzoic acid (2,3-DHBA), 2,5-dihydroxybenzoic acid (2,5-DHBA) and the flavonoid metabolites 2,4,6-trihydroxybenzoic acid (2,4,6-THBA), 3,4-dihydroxybenzoic acid (3,4-DHBA) and 3,4,5-trihydroxybenzoic acid (3,4,5-THBA) were effective in inhibiting cancer cell growth in vitro. Limited in vivo studies also provide evidence that some of these hydroxybenzoic acids (HBAs) inhibit tumor growth in animal models. This raises the possibility that a common pathway involving HBAs may be responsible for the observed cancer preventive actions of aspirin and flavonoids. Since substantial amounts of aspirin and flavonoids are left unabsorbed in the intestinal lumen upon oral consumption, they may be subjected to degradation by the host and bacterial enzymes, generating simpler phenolic acids contributing to the prevention of CRC. Interestingly, these HBAs are also abundantly present in fruits and vegetables. Therefore, we suggest that the HBAs produced through microbial degradation of aspirin and flavonoids or those consumed through the diet may be common mediators of CRC prevention.
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Affiliation(s)
- Ranjini Sankaranarayanan
- Department of Pharmaceutical Sciences and Translational Cancer Research Center, South Dakota State University, College of Pharmacy and Allied Health Professions, Brookings, SD 57007, USA; (R.S.); (J.P.)
| | - D. Ramesh Kumar
- Department of Entomology, University of Kentucky, Lexington, KY 40506, USA;
| | - Janki Patel
- Department of Pharmaceutical Sciences and Translational Cancer Research Center, South Dakota State University, College of Pharmacy and Allied Health Professions, Brookings, SD 57007, USA; (R.S.); (J.P.)
| | - G. Jayarama Bhat
- Department of Pharmaceutical Sciences and Translational Cancer Research Center, South Dakota State University, College of Pharmacy and Allied Health Professions, Brookings, SD 57007, USA; (R.S.); (J.P.)
- Correspondence: ; Tel.: +1-605-688-6894
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13
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Abedi F, Razavi BM, Hosseinzadeh H. A review on gentisic acid as a plant derived phenolic acid and metabolite of aspirin: Comprehensive pharmacology, toxicology, and some pharmaceutical aspects. Phytother Res 2019; 34:729-741. [PMID: 31825145 DOI: 10.1002/ptr.6573] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 10/24/2019] [Accepted: 11/12/2019] [Indexed: 12/29/2022]
Abstract
Beneficial therapeutic effects of phenolic acids have been proven in various research projects including in vivo and in vitro studies. Gentisic acid (GA) is a phenolic acid that has been associated with useful effects on human health, such as antiinflammatory, antigenotoxic, hepatoprotective, neuroprotective, antimicrobial, and especially antioxidant activities. It is an important metabolite of aspirin and also widely distributed in plants as a secondary plant product such as Gentiana spp., Citrus spp., Vitis vinifera, Pterocarpus santalinus, Helianthus tuberosus, Hibiscus rosa-sinensis, Olea europaea, and Sesamum indicum and in fruits such as avocados, batoko plum, kiwi fruits, apple, bitter melon, black berries, pears, and some mushrooms. This study was undertaken to review the pharmacological effects, pharmacokinetic properties as well as toxicity and pharmaceutical applications of GA.
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Affiliation(s)
- Farshad Abedi
- School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bibi Marjan Razavi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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14
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Amrita Srivastava, Gupta M, Srivastava S. Kinetic, Spectroscopic, and DFT Studies of Novel Oxidation of Acetylsalicylic Acid by NaIO4 Using Micro-amount of Os(VIII) As a Homogeneous Catalyst in Alkaline Medium. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2019. [DOI: 10.1134/s0036024419100297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Pomes LM, Guglielmetti M, Bertamino E, Simmaco M, Borro M, Martelletti P. Optimising migraine treatment: from drug-drug interactions to personalized medicine. J Headache Pain 2019; 20:56. [PMID: 31101004 PMCID: PMC6734220 DOI: 10.1186/s10194-019-1010-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 05/05/2019] [Indexed: 11/16/2022] Open
Abstract
Migraine is the most disabling and expensive chronic disorders, the etiology of which is still not fully known. The neuronal systems, (glutammatergic, dopaminergic, serotoninergic and GABA-ergic) whose functionality is partly attributable to genetically determined factors, has been suggested to play an important role. The treatment of acute attacks and the prophylactic management of chronic forms include the use of different category of drugs, and it is demonstrated that not each subject has the same clinical answer to them. The reason of this is to be searched in different functional capacity and quantity of phase I enzymes (such as different isoforms of CYP P450), phase II enzymes (such as UDP-glucuronosyltransferases), receptors (such as OPRM1 for opioids) and transporters (such as ABCB1) involved in the metabolic destiny of each drug, all of these dictated by DNA and RNA variations. The general picture is further exacerbated by the need for polytherapies, often also to treat comorbidities, which may interfere with the pharmacological action of anti-migraine drugs. Personalized medicine has the objective of setting the optimal therapies in the light of the functional biochemical asset and of the comorbidities of the individual patient, in order to obtain the best clinical response. Novel therapeutic perspectives in migraine includes biotechnological drugs directed against molecules (such as CGRP and its receptor) that cause vasodilatation at the peripheral level of the meningeal blood vessels and reflex stimulation of the parasympathetic system. Drug-drug interactions and the possible competitive metabolic destiny should be studied by the application of pharmacogenomics in large scale. Drug-drug interactions and their possible competitive metabolic destiny should be studied by the application of pharmacogenomics in large scale.
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Affiliation(s)
- Leda Marina Pomes
- Residency Program in Laboratory Medicine, Gabriele d'Annunzio University, Chieti, Italy
| | - Martina Guglielmetti
- Regional Referral Headache Centre, Sant'Andrea Hospital, Rome, Italy.,Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - Enrico Bertamino
- Residency Program in Hygiene and Preventive Medicine, Sapienza University of Rome, Rome, Italy
| | - Maurizio Simmaco
- Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, Rome, Italy.,Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Marina Borro
- Department of Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, Rome, Italy.,Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Paolo Martelletti
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy. .,Internal Medicine and Emergency Medicine Unit, Sant'Andrea Hospital, Rome, Italy.
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16
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Meech R, Hu DG, McKinnon RA, Mubarokah SN, Haines AZ, Nair PC, Rowland A, Mackenzie PI. The UDP-Glycosyltransferase (UGT) Superfamily: New Members, New Functions, and Novel Paradigms. Physiol Rev 2019; 99:1153-1222. [DOI: 10.1152/physrev.00058.2017] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
UDP-glycosyltransferases (UGTs) catalyze the covalent addition of sugars to a broad range of lipophilic molecules. This biotransformation plays a critical role in elimination of a broad range of exogenous chemicals and by-products of endogenous metabolism, and also controls the levels and distribution of many endogenous signaling molecules. In mammals, the superfamily comprises four families: UGT1, UGT2, UGT3, and UGT8. UGT1 and UGT2 enzymes have important roles in pharmacology and toxicology including contributing to interindividual differences in drug disposition as well as to cancer risk. These UGTs are highly expressed in organs of detoxification (e.g., liver, kidney, intestine) and can be induced by pathways that sense demand for detoxification and for modulation of endobiotic signaling molecules. The functions of the UGT3 and UGT8 family enzymes have only been characterized relatively recently; these enzymes show different UDP-sugar preferences to that of UGT1 and UGT2 enzymes, and to date, their contributions to drug metabolism appear to be relatively minor. This review summarizes and provides critical analysis of the current state of research into all four families of UGT enzymes. Key areas discussed include the roles of UGTs in drug metabolism, cancer risk, and regulation of signaling, as well as the transcriptional and posttranscriptional control of UGT expression and function. The latter part of this review provides an in-depth analysis of the known and predicted functions of UGT3 and UGT8 enzymes, focused on their likely roles in modulation of levels of endogenous signaling pathways.
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Affiliation(s)
- Robyn Meech
- Department of Clinical Pharmacology and Flinders Centre for Innovation in Cancer, Flinders University College of Medicine and Public Health, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - Dong Gui Hu
- Department of Clinical Pharmacology and Flinders Centre for Innovation in Cancer, Flinders University College of Medicine and Public Health, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - Ross A. McKinnon
- Department of Clinical Pharmacology and Flinders Centre for Innovation in Cancer, Flinders University College of Medicine and Public Health, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - Siti Nurul Mubarokah
- Department of Clinical Pharmacology and Flinders Centre for Innovation in Cancer, Flinders University College of Medicine and Public Health, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - Alex Z. Haines
- Department of Clinical Pharmacology and Flinders Centre for Innovation in Cancer, Flinders University College of Medicine and Public Health, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - Pramod C. Nair
- Department of Clinical Pharmacology and Flinders Centre for Innovation in Cancer, Flinders University College of Medicine and Public Health, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - Andrew Rowland
- Department of Clinical Pharmacology and Flinders Centre for Innovation in Cancer, Flinders University College of Medicine and Public Health, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - Peter I. Mackenzie
- Department of Clinical Pharmacology and Flinders Centre for Innovation in Cancer, Flinders University College of Medicine and Public Health, Flinders Medical Centre, Bedford Park, South Australia, Australia
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17
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Dai J, Huang YJ, He X, Zhao M, Wang X, Liu ZS, Xue W, Cai H, Zhan XY, Huang SY, He K, Wang H, Wang N, Sang Z, Li T, Han QY, Mao J, Diao X, Song N, Chen Y, Li WH, Man JH, Li AL, Zhou T, Liu ZG, Zhang XM, Li T. Acetylation Blocks cGAS Activity and Inhibits Self-DNA-Induced Autoimmunity. Cell 2019; 176:1447-1460.e14. [PMID: 30799039 DOI: 10.1016/j.cell.2019.01.016] [Citation(s) in RCA: 199] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 11/27/2018] [Accepted: 01/04/2019] [Indexed: 12/30/2022]
Abstract
The presence of DNA in the cytoplasm is normally a sign of microbial infections and is quickly detected by cyclic GMP-AMP synthase (cGAS) to elicit anti-infection immune responses. However, chronic activation of cGAS by self-DNA leads to severe autoimmune diseases for which no effective treatment is available yet. Here we report that acetylation inhibits cGAS activation and that the enforced acetylation of cGAS by aspirin robustly suppresses self-DNA-induced autoimmunity. We find that cGAS acetylation on either Lys384, Lys394, or Lys414 contributes to keeping cGAS inactive. cGAS is deacetylated in response to DNA challenges. Importantly, we show that aspirin can directly acetylate cGAS and efficiently inhibit cGAS-mediated immune responses. Finally, we demonstrate that aspirin can effectively suppress self-DNA-induced autoimmunity in Aicardi-Goutières syndrome (AGS) patient cells and in an AGS mouse model. Thus, our study reveals that acetylation contributes to cGAS activity regulation and provides a potential therapy for treating DNA-mediated autoimmune diseases.
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Affiliation(s)
- Jiang Dai
- State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China; State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Yi-Jiao Huang
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Xinhua He
- State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Ming Zhao
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Xinzheng Wang
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Zhao-Shan Liu
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Wen Xue
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Hong Cai
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Xiao-Yan Zhan
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Shao-Yi Huang
- State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China; State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Kun He
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Hongxia Wang
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Na Wang
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Zhihong Sang
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Tingting Li
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Qiu-Ying Han
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Jie Mao
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Xinwei Diao
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China; Department of Pathology, Xinqiao Hospital, 3(rd) Military Medical University, Chongqing 400037, China
| | - Nan Song
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Yuan Chen
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Wei-Hua Li
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Jiang-Hong Man
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Ai-Ling Li
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Tao Zhou
- State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China
| | - Zheng-Gang Liu
- Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Xue-Min Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China; State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China; Cancer Research Institute of Jilin University, the First Hospital of Jilin University, Changchun, Jilin Province 130021, China.
| | - Tao Li
- State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China; State Key Laboratory of Proteomics, Institute of Basic Medical Sciences, National Center of Biomedical Analysis, 27 Tai-Ping Road, Beijing 100850, China.
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18
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Desbiolles F, Malleret L, Tiliacos C, Wong-Wah-Chung P, Laffont-Schwob I. Occurrence and ecotoxicological assessment of pharmaceuticals: Is there a risk for the Mediterranean aquatic environment? THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 639:1334-1348. [PMID: 29929299 DOI: 10.1016/j.scitotenv.2018.04.351] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/10/2018] [Accepted: 04/25/2018] [Indexed: 05/03/2023]
Abstract
Due to their pseudo-persistence and their biological activity, pharmaceuticals are emerging contaminants of major concern for the environment. The aim of this review is to provide an updated inventory of the contamination of aquatic environments by 43 drugs representing different classes of pharmaceuticals, such as antibiotics, anti-inflammatory drugs, anti-depressants, sex hormones, lipid regulators and beta-blockers. The data collected is focused on contamination levels reported in marine coastal waters and in waste and river waters flowing into the Mediterranean Sea. The most widely produced/prescribed classes of medicines are compared with the substances most widely searched for in the environment. Ranges of pollution levels according to the type of water body are also presented, to examine the fate in sewage treatment plants and the persistence in the environment of the targeted molecules. Levels of pharmaceuticals ranged from 100 to 10,000 or even 100,000 ng·L-1 in sewage waters, dropping to 1 to 10,000 ng·L-1 in rivers and to not detected to 3000 ng·L-1 in sea water. However, this paper evidences a lack of data for seawater and also for several countries along the southern coast of the Mediterranean Sea. In order to assess the risk for aquatic ecosystems associated with pharmaceuticals, experimental ecotoxicological values obtained using normalized acute and/or chronic bioassays carried out with different trophic levels were collected for each drug. Targeted biological species and associated bioassays are classified on the basis of their sensitivity to each class of compounds. Occurrence and ecotoxicology are then linked by using the Hazard Quotient (HQ) to assess the environmental risk caused by pharmaceuticals in the Mediterranean Basin. Correlations between HQ and frequency of detection of pharmaceuticals highlighted thirteen compounds that are cause for concern in Mediterranean fresh and sea waters, such as 17α-ethinylestradiol, metoprolol, 8 antibiotics and 3 analgesics/anti-inflammatories.
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Affiliation(s)
- Fanny Desbiolles
- Aix Marseille Univ, CNRS, LCE, UMR 7376, ECCOREV FR 3098, Marseille, France; Aix Marseille Univ, CNRS, IRD, Avignon Université, IMBE, Marseille, France
| | - Laure Malleret
- Aix Marseille Univ, CNRS, LCE, UMR 7376, ECCOREV FR 3098, Marseille, France.
| | - Christophe Tiliacos
- Seakalia, Technopôle de Château Gombert, 3 allée des Maraîchers, 13013 Marseille, France
| | | | - Isabelle Laffont-Schwob
- Aix Marseille Univ, CNRS, IRD, Avignon Université, IMBE, Marseille, France; Aix Marseille Univ, IRD, LPED, UMR 151, Marseille, France
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19
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Nyúl E, Kuzma M, Mayer M, Lakatos S, Almási A, Perjési P. HPLC study on Fenton-reaction initiated oxidation of salicylic acid. Biological relevance of the reaction in intestinal biotransformation of salicylic acid. Free Radic Res 2018; 52:1040-1051. [PMID: 30173586 DOI: 10.1080/10715762.2018.1517260] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Fenton-reaction initiated in vitro oxidation and in vivo oxidative biotransformation of salicylic acid was investigated by HPLC-UV-Vis method. By means of the developed high performance liquid chromatography (HPLC) method salicylic acid, catechol, and all the possible monohydroxylated derivatives of salicylic acid can be separated. Fenton oxidations were performed in acidic medium (pH 3.0) with two reagent molar ratios: (1) salicylic acid: iron: hydrogen peroxide 1:3:1 and (2) 1:0.3:1. The incubation samples were analysed at different time points of the reactions. The biological effect of elevated reactive oxygen species concentration on the intestinal metabolism of salicylic acid was investigated by an experimental diabetic rat model. HPLC-MS analysis of the in vitro samples revealed presence of 2,3- and 2,5-dihydroxybenzoic acids. The results give evidence for nonenzyme catalysed intestinal hydroxylation of xenobiotics.
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Affiliation(s)
- Eszter Nyúl
- a Institute of Pharmaceutical Chemistry , University of Pécs , Pécs , Hungary
| | - Mónika Kuzma
- a Institute of Pharmaceutical Chemistry , University of Pécs , Pécs , Hungary
| | - Mátyás Mayer
- b Department of Forensic Medicine , University of Pécs , Pécs , Hungary
| | - Sándor Lakatos
- a Institute of Pharmaceutical Chemistry , University of Pécs , Pécs , Hungary
| | - Attila Almási
- a Institute of Pharmaceutical Chemistry , University of Pécs , Pécs , Hungary
| | - Pál Perjési
- a Institute of Pharmaceutical Chemistry , University of Pécs , Pécs , Hungary
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20
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Analyses of the genetic diversity and protein expression variation of the acyl: CoA medium-chain ligases, ACSM2A and ACSM2B. Mol Genet Genomics 2018; 293:1279-1292. [PMID: 29948332 DOI: 10.1007/s00438-018-1460-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 06/11/2018] [Indexed: 12/18/2022]
Abstract
Benzoate (found in milk and widely used as preservative), salicylate (present in fruits and the active component of aspirin), dietary polyphenols produced by gut microbiota, metabolites from organic acidemias, and medium-chain fatty acids (MCFAs) are all metabolised/detoxified by the glycine conjugation pathway. Xenobiotics are first activated to an acyl-CoA by the mitochondrial xenobiotic/medium-chain fatty acid: CoA ligases (ACSMs) and subsequently conjugated to glycine by glycine N-acyltransferase (GLYAT). The MCFAs are activated to acyl-CoA by the ACSMs before entering mitochondrial β-oxidation. This two-step enzymatic pathway has, however, not been thoroughly investigated and the biggest gap in the literature remains the fact that studies continuously characterise the pathway as a one-step reaction. There are no studies available on the interaction/competition of the various substrates involved in the pathway, whilst very little research has been done on the ACSM ligases. To identify variants/haplotypes that should be characterised in future detoxification association studies, this study assessed the naturally observed sequence diversity and protein expression variation of ACSM2A and ACSM2B. The allelic variation, haplotype diversity, Tajima's D values, and phylogenetic analyses indicated that ACSM2A and ACSM2B are highly conserved. This confirmed an earlier hypothesis that the glycine conjugation pathway is highly conserved and essential for life as it maintains the CoA and glycine homeostasis in the liver mitochondria. The protein expression analyses showed that ACSM2A is the predominant transcript in liver. Future studies should investigate the effect of the variants identified in this study on the substrate specificity of these proteins.
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Pshenichnyuk SA, Modelli A, Komolov AS. Interconnections between dissociative electron attachment and electron-driven biological processes. INT REV PHYS CHEM 2018. [DOI: 10.1080/0144235x.2018.1461347] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Stanislav A. Pshenichnyuk
- Institute of Molecule and Crystal Physics – Subdivision of the Ufa Research Centre of the Russian Academy of Sciences, Ufa, Russia
| | - Alberto Modelli
- Dipartimento di Chimica ‘G. Ciamician’, Università di Bologna, Bologna, Italy
- Centro Interdipartimentale di Ricerca in Scienze Ambientali, Ravenna, Italy
| | - Alexei S. Komolov
- Department of Solid State Electronics, St. Petersburg State University, St. Petersburg, Russia
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22
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Khalaf N, Yuan C, Hamada T, Cao Y, Babic A, Morales-Oyarvide V, Kraft P, Ng K, Giovannucci E, Ogino S, Stampfer M, Cochrane BB, Manson JE, Clish CB, Chan AT, Fuchs CS, Wolpin BM. Regular Use of Aspirin or Non-Aspirin Nonsteroidal Anti-Inflammatory Drugs Is Not Associated With Risk of Incident Pancreatic Cancer in Two Large Cohort Studies. Gastroenterology 2018; 154:1380-1390.e5. [PMID: 29229401 PMCID: PMC5880716 DOI: 10.1053/j.gastro.2017.12.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 10/29/2017] [Accepted: 12/04/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND & AIMS Use of aspirin and/or non-aspirin nonsteroidal anti-inflammatory drugs (NSAIDs) reduces the risk of several cancers, but it is not clear if use of these drugs is associated with risk of pancreatic cancer. METHODS We evaluated aspirin and non-aspirin NSAID use and risk of pancreatic adenocarcinoma in 141,940 participants from the Health Professionals Follow-up Study and Nurses' Health Study using multivariable-adjusted Cox proportional hazards regression. We considered several exposure classifications to model differing lag times between NSAID exposure and cancer development. We also conducted a nested case-control study of participants from 3 prospective cohorts using conditional logistic regression to evaluate pre-diagnosis levels of plasma salicylurate, a major metabolite of aspirin, in 396 pancreatic cancer cases and 784 matched individuals without pancreatic cancer (controls). RESULTS In the prospective cohort study, 1122 participants developed pancreatic adenocarcinoma over 4.2 million person-years. Use of aspirin or non-aspirin NSAIDs was not associated with pancreatic cancer risk, even after considering several latency exposure classifications. In a pre-planned subgroup analysis, regular aspirin use was associated with reduced pancreatic cancer risk among participants with diabetes (relative risk, 0.71; 95% CI, 0.54-0.94). In the nested case-control study, pre-diagnosis levels of salicylurate were not associated with pancreatic cancer risk (odds ratio, 1.08; 95% CI, 0.72-1.61; Ptrend 0.81; comparing participants in the highest quintile with those in the lowest quintile of plasma salicylurate). CONCLUSIONS Regular aspirin or non-aspirin NSAID use was not associated with future risk of pancreatic cancer in participants from several large prospective cohort studies. A possible reduction in risk for pancreatic cancer among people with diabetes who regularly use aspirin should be further examined in preclinical and human studies.
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Affiliation(s)
- Natalia Khalaf
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts
| | - Chen Yuan
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Tsuyoshi Hamada
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Yin Cao
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Ana Babic
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Vicente Morales-Oyarvide
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Peter Kraft
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Kimmie Ng
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Edward Giovannucci
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Shuji Ogino
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts; Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Program of MPE Molecular Pathological Epidemiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Meir Stampfer
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | | | - JoAnn E Manson
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Division of Preventive Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Clary B Clish
- Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts
| | - Andrew T Chan
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts; Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts; Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Charles S Fuchs
- Yale Cancer Center at Yale School of Medicine and Smilow Cancer Hospital, New Haven, Connecticut
| | - Brian M Wolpin
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts.
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23
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Zhang Q, Guan J, Li S, Zhao Y, Yu Z. Application of an UHPLC–MS/MS method to tissue distribution and excretion study of 2-(2-hydroxypropanamido) benzoic acid in rats. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1070:54-61. [DOI: 10.1016/j.jchromb.2017.10.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 10/11/2017] [Accepted: 10/20/2017] [Indexed: 01/03/2023]
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24
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Dachineni R, Kumar DR, Callegari E, Kesharwani SS, Sankaranarayanan R, Seefeldt T, Tummala H, Bhat GJ. Salicylic acid metabolites and derivatives inhibit CDK activity: Novel insights into aspirin's chemopreventive effects against colorectal cancer. Int J Oncol 2017; 51:1661-1673. [PMID: 29075787 PMCID: PMC5673027 DOI: 10.3892/ijo.2017.4167] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 09/20/2017] [Indexed: 12/14/2022] Open
Abstract
Aspirin's potential as a drug continues to be evaluated for the prevention of colorectal cancer (CRC). Although multiple targets for aspirin and its metabolite, salicylic acid, have been identified, no unifying mechanism has been proposed to clearly explain its chemopreventive effects. Our goal here was to investigate the ability of salicylic acid metabolites, known to be generated through cytochrome P450 (CYP450) enzymes, and its derivatives as cyclin dependent kinase (CDK) inhibitors to gain new insights into aspirin's chemopreventive actions. Using in vitro kinase assays, for the first time, we demonstrate that salicylic acid metabolites, 2,3-dihydroxy-benzoic acid (2,3-DHBA) and 2,5-dihydroxybenzoic acid (2,5-DHBA), as well as derivatives 2,4-dihydroxybenzoic acid (2,4-DHBA), 2,6-dihydroxybenzoic acid (2,6-DHBA), inhibited CDK1 enzyme activity. 2,3-DHBA and 2,6-DHBA did not inhibit CDK2 and 4; however, both inhibited CDK-6 activity. Interestingly, another derivative, 2,4,6-trihydroxybenzoic acid (2,4,6-THBA) was highly effective in inhibiting CDK1, 2, 4 and 6 activity. Molecular docking studies showed that these compounds potentially interact with CDK1. Immunoblotting experiments showed that aspirin acetylated CDK1, and pre-incubation with salicylic acid and its derivatives prevented aspirin-mediated CDK1 acetylation, which supported the data obtained from molecular docking studies. We suggest that intracellularly generated salicylic acid metabolites through CYP450 enzymes within the colonic epithelial cells, or the salicylic acid metabolites generated by gut microflora may significantly contribute to the preferential chemopreventive effect of aspirin against CRC through inhibition of CDKs. This novel hypothesis and mechanism of action in aspirin's chemopreventive effects opens a new area for future research. In addition, structural modification to salicylic acid derivatives may prove useful in the development of novel CDK inhibitors in cancer prevention and treatment.
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Affiliation(s)
- Rakesh Dachineni
- Department of Pharmaceutical Sciences and Translational Cancer Research Center, South Dakota State University College of Pharmacy and Allied Health Professions, Brookings, SD 57007, USA
| | - D Ramesh Kumar
- Department of Pharmaceutical Sciences and Translational Cancer Research Center, South Dakota State University College of Pharmacy and Allied Health Professions, Brookings, SD 57007, USA
| | - Eduardo Callegari
- SD-BRIN Proteomic Facility, University of South Dakota School of Medicine, Vermillion, SD 57069, USA
| | - Siddharth S Kesharwani
- Department of Pharmaceutical Sciences and Translational Cancer Research Center, South Dakota State University College of Pharmacy and Allied Health Professions, Brookings, SD 57007, USA
| | - Ranjini Sankaranarayanan
- Department of Pharmaceutical Sciences and Translational Cancer Research Center, South Dakota State University College of Pharmacy and Allied Health Professions, Brookings, SD 57007, USA
| | - Teresa Seefeldt
- Department of Pharmaceutical Sciences and Translational Cancer Research Center, South Dakota State University College of Pharmacy and Allied Health Professions, Brookings, SD 57007, USA
| | - Hemachand Tummala
- Department of Pharmaceutical Sciences and Translational Cancer Research Center, South Dakota State University College of Pharmacy and Allied Health Professions, Brookings, SD 57007, USA
| | - G Jayarama Bhat
- Department of Pharmaceutical Sciences and Translational Cancer Research Center, South Dakota State University College of Pharmacy and Allied Health Professions, Brookings, SD 57007, USA
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25
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Cavalcante FML, Almeida IV, Düsman E, Mantovani MS, Vicentini VEP. Cytotoxicity, mutagenicity, and antimutagenicity of the gentisic acid on HTC cells. Drug Chem Toxicol 2017; 41:155-161. [PMID: 28511592 DOI: 10.1080/01480545.2017.1322606] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Gentisic acid (GA) exhibits antioxidant, anti-inflammatory, and antibiotic activities. This substance can be found in citrus fruits, grapes, olive oil, and peas. Considering that there are few studies in the literature on the toxicity of GA, the present work aimed to investigate its cytotoxic, mutagenic, and antimutagenic activities on HTC cells. GA was diluted in culture medium at the final concentration of 0.08, 0.16, 0.8, 1.6, and 8 μg/mL. The cytotoxicity was determined by the MTT assay and Trypan Blue exclusion method, with methyl methanesulfonate and doxorubicin as positive controls, respectively. The cytokinesis-block micronucleus assay determined the mutagenic/antimutagenic activity with benzo[a]pyrene as positive control. Negative control received culture medium only. GA (0.08-8 μg/mL) was not cytotoxic to HTC cells by the MTT assay nor the Trypan Blue exclusion method as no statistical difference was observed when compared to the control. Concentration of 0.08 and 0.8 μg/mL showed no mutagenic or clastogenic effects, as no significant micronuclei inductions were observed, different from 8 μg/mL, that was mutagenic. Furthermore, none of the concentrations presented an antiproliferative activity. The antimutagenic activity of GA (0.08 μg/mL) was observed at the simultaneous treatment, as it reduced the frequency of micronuclei by 76% (24 h) and 79% (48 h). Although pre- and post-treatments were not statistically different from the mutagen, they reduced the induced-damage by 11% and 21%, respectively. The present study indicated the absence of cytotoxicity and antiproliferative activities of GA, in addition to their antimutagenic/protective effects that may contribute to human health.
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Affiliation(s)
- Flavia Maria Lima Cavalcante
- a Department of Biotechnology , Genetics and Cell Biology - State University of Maringá , Maringá , Paraná , Brazil
| | - Igor Vivian Almeida
- a Department of Biotechnology , Genetics and Cell Biology - State University of Maringá , Maringá , Paraná , Brazil
| | - Elisângela Düsman
- a Department of Biotechnology , Genetics and Cell Biology - State University of Maringá , Maringá , Paraná , Brazil
| | - Mário Sérgio Mantovani
- b Department of General Biology , State University of Londrina , Londrina , Paraná , Brazil
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Zhang H, Xie H, Zheng X, Chai Y, Tang Z, Chen H, Li F, Christoph H, Chen J, Sun W, Ye H, Wang S, Hao H, Chen X. Salicylic acid retention impairs aspirin reactivity in type 2 diabetes. Eur J Pharmacol 2017; 794:234-245. [DOI: 10.1016/j.ejphar.2016.11.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/22/2016] [Accepted: 11/24/2016] [Indexed: 12/20/2022]
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27
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Li JP, Guo JM, Shang EX, Zhu ZH, Liu Y, Zhao BC, Zhao J, Tang ZS, Duan JA. Quantitative determination of five metabolites of aspirin by UHPLC-MS/MS coupled with enzymatic reaction and its application to evaluate the effects of aspirin dosage on the metabolic profile. J Pharm Biomed Anal 2016; 138:109-117. [PMID: 28192718 DOI: 10.1016/j.jpba.2016.12.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 12/20/2016] [Accepted: 12/28/2016] [Indexed: 12/17/2022]
Abstract
Acetylsalicylic acid (Aspirin, ASA) is a famous drug for cardiovascular diseases in recent years. Effects of ASA dosage on the metabolic profile have not been fully understood. The purpose of our study is to establish a rapid and reliable method to quantify ASA metabolites in biological matrices, especially for glucuronide metabolites whose standards are not commercially available. Then we applied this method to evaluate the effects of ASA dosage on the metabolic and excretion profile of ASA metabolites in rat urine. Salicylic acid (SA), gentisic acid (GA) and salicyluric acid (SUA) were determined directly by UHPLC-MS/MS, while salicyl phenolic glucuronide (SAPG) and salicyluric acid phenolic glucuronide (SUAPG) were quantified indirectly by measuring the released SA and SUA from SAPG and SUAPG after β-glucuronidase digestion. SUA and SUAPG were the major metabolites of ASA in rat urine 24h after ASA administration, which accounted for 50% (SUA) and 26% (SUAPG). When ASA dosage was increased, the contributions dropped to 32% and 18%, respectively. The excretion of other three metabolites (GA, SA and SAPG) however showed remarkable increases by 16%, 6% and 4%, respectively. In addition, SUA and SUAPG were mainly excreted in the time period of 12-24h, while GA was excreted in the earlier time periods (0-4h and 4-8h). SA was mainly excreted in the time period of 0-4h and 12-24h. And the excretion of SAPG was equally distributed in the four time periods. We went further to show that the excretion of five metabolites in rat urine was delayed when ASA dosage was increased. In conclusion, we have developed a rapid and sensitive method to determine the five ASA metabolites (SA, GA, SUA, SAPG and SUAPG) in rat urine. We showed that ASA dosage could significantly influence the metabolic and excretion profile of ASA metabolites in rat urine.
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Affiliation(s)
- Jian-Ping Li
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Jian-Ming Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Er-Xin Shang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zhen-Hua Zhu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yang Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | | | - Jing Zhao
- Buchang Pharma., Xi'an 710000, China
| | - Zhi-Shu Tang
- Shanxi University of Chinese Medicine, Xianyang 712000, China
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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28
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Greene T, Rogers S, Franzen A, Gentry R. A critical review of the literature to conduct a toxicity assessment for oral exposure to methyl salicylate. Crit Rev Toxicol 2016; 47:98-120. [DOI: 10.1080/10408444.2016.1236071] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Tracy Greene
- Environment and Health Division, Ramboll Environ, Monroe, LA, USA
| | - Sarah Rogers
- Environment and Health Division, Ramboll Environ, Monroe, LA, USA
| | - Allison Franzen
- Environment and Health Division, Ramboll Environ, Monroe, LA, USA
| | - Robinan Gentry
- Environment and Health Division, Ramboll Environ, Monroe, LA, USA
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29
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van der Sluis R, Erasmus E. Xenobiotic/medium chain fatty acid: CoA ligase - a critical review on its role in fatty acid metabolism and the detoxification of benzoic acid and aspirin. Expert Opin Drug Metab Toxicol 2016; 12:1169-79. [PMID: 27351777 DOI: 10.1080/17425255.2016.1206888] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
INTRODUCTION Activation of fatty acids by the acyl-CoA synthetases (ACSs) is the vital first step in fatty acid metabolism. The enzymatic and physiological characterization of the human xenobiotic/medium chain fatty acid: CoA ligases (ACSMs) has been severely neglected even though xenobiotics, such as benzoate and salicylate, are detoxified through this pathway. AREAS COVERED This review will focus on the nomenclature and substrate specificity of the human ACSM ligases; the biochemical and enzymatic characterization of ACSM1 and ACSM2B; the high sequence homology of the ACSM2 genes (ACSM2A and ACSM2B) as well as what is currently known regarding disease association studies. EXPERT OPINION Several discrepancies exist in the current literature that should be taken note of. For example, the single nucleotide polymorphisms (SNPs) reported to be associated with aspirin metabolism and multiple risk factors of metabolic syndrome are incorrect. Kinetic data on the substrate specificity of the human ACSM ligases are non-existent and currently no data exist on the influence of SNPs on the enzyme activity of these ligases. One of the biggest obstacles currently in the field is that glycine conjugation is continuously studied as a one-step process, which means that key regulatory factors of the two individual steps remain unknown.
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Affiliation(s)
- Rencia van der Sluis
- a Centre for Human Metabolomics, Biochemistry Division , North-West University , Potchefstroom , South Africa
| | - Elardus Erasmus
- a Centre for Human Metabolomics, Biochemistry Division , North-West University , Potchefstroom , South Africa
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30
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Kuzma M, Nyúl E, Mayer M, Fischer E, Perjési P. HPLC analysis of in vivo intestinal absorption and oxidative metabolism of salicylic acid in the rat. Biomed Chromatogr 2016; 30:2044-2052. [PMID: 27352811 DOI: 10.1002/bmc.3783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Revised: 05/20/2016] [Accepted: 06/24/2016] [Indexed: 11/08/2022]
Abstract
In vivo absorption and oxidative metabolism of salicylic acid in rat small intestine was studied by luminal perfusion experiment. Perfusion through the lumen of proximal jejunum with isotonic medium containing 250 μm sodium salicylate was carried out. Absorption of salicylate was measured by a validated HPLC-DAD method which was evaluated for a number of validation characteristics (specificity, repeatability and intermediate precision, limit of detection, limit of quantification, linearity and accuracy). The method was linear over the concentration range 0.5-50 μg/mL. After liquid-liquid extraction of the perfusion samples oxidative biotransformation of salicylate was also investigated by HPLC-MS. The method was linear over the concentration range 0.25-5.0 μg/mL. Two hydroxylated metabolites of salicylic acid (2,5-dihydroxybenzoic acid and 2,3-dihydroxybenzoic acid) were detected and identified. The mean recovery of extraction was 72.4% for 2,3-DHB, 72.5% for 2,5-DHB and 50.1% for salicylic acid, respectively. The methods were successfully applied to investigate jejunal absorption and oxidative metabolism of sodium salicylate in experimental animals. The methods provide analytical background for further metabolic studies of salycilates under modified physiological conditions.
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Affiliation(s)
- Mónika Kuzma
- Institute of Pharmaceutical Chemistry, University of Pécs, H-7624, Pécs, Rókus str. 2, Hungary
| | - Eszter Nyúl
- Institute of Pharmaceutical Chemistry, University of Pécs, H-7624, Pécs, Rókus str. 2, Hungary
| | - Mátyás Mayer
- Department of Forensic Medicine, University of Pécs, H-7624, Pécs, Szigeti str. 12, Hungary
| | - Emil Fischer
- Department of Pharmacology and Pharmacotherapy, University of Pécs, H-7624, Pécs, Szigeti str. 12, Hungary
| | - Pál Perjési
- Institute of Pharmaceutical Chemistry, University of Pécs, H-7624, Pécs, Rókus str. 2, Hungary
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31
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Cai G, Zhou W, Lu Y, Chen P, Lu Z, Fu Y. Aspirin resistance and other aspirin-related concerns. Neurol Sci 2015; 37:181-9. [PMID: 26573589 DOI: 10.1007/s10072-015-2412-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 10/26/2015] [Indexed: 12/16/2022]
Abstract
Aspirin is a widely used medication and has become a cornerstone for treating cardiovascular disease. Aspirin can significantly reduce the incidence of cardiovascular ischemic events, recurrence and mortality, thereby improving the long-term prognosis of patients. However, there has been a staggering increase in the volume of literature addressing the issue of so-called "aspirin resistance" in recent years, and for some patients, it is difficult to avoid adverse reactions to aspirin. In this review, we present both the historical aspects of aspirin use and contemporary developments in its clinical use.
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Affiliation(s)
- Gaoyu Cai
- Department of Neurology and Institute of Neurology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Weijun Zhou
- Department of Emergency, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Ya Lu
- Shanghai Wusong Street Community Health Service Center, Shanghai, 200940, China
| | - Peili Chen
- Department of Emergency, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Zhongjiao Lu
- Department of Neurology and Institute of Neurology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Yi Fu
- Department of Neurology and Institute of Neurology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China.
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32
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Jones R, Marschmann M, Keller M, Qiu NH, Fowler S, Singer T, Schuler F, Funk C, Schadt S. Shedding light on minipig drug metabolism - elevated amide hydrolysis in vitro. Xenobiotica 2015; 46:483-94. [PMID: 26405846 DOI: 10.3109/00498254.2015.1089452] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
1. In recent years, the minipig is increasingly used as a test species in non-clinical assessment of drug candidates. While there is good scientific evidence available concerning cytochrome P450-mediated metabolism in minipig, the knowledge of other metabolic pathways is more limited. 2. The aim of this study was to provide an understanding of when, why, and how drug metabolism in minipig differs from other species commonly used in non-clinical studies. In-house cross-species metabolite profile comparisons in hepatocytes and microsomes of 38 Roche development compounds were retrospectively analyzed to compare the metabolism among minipig, human, rat, dog, monkey, rabbit and mouse. 3. A significant contributor to the elevated metabolism observed for certain compounds in minipig was identified as amide hydrolysis. The hepatic amide hydrolysis activity in minipig was further investigated in subcellular liver fractions and a structure-activity relationship was established. When structural motifs according to the established SAR are excluded, coverage of major human metabolic pathways was shown to be higher in minipig than in dog, and only slightly lower than in cynomolgus monkey. 4. A strategy is presented for early identification of drug compounds which might not be suited to further investigation in minipig due to excessive hydrolytic metabolism.
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Affiliation(s)
- Russell Jones
- a Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd , Basel , Switzerland and
| | - Michaela Marschmann
- a Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd , Basel , Switzerland and
| | - Michael Keller
- b Institut fuer Pharmazeutische Wissenschaften, Albert-Ludwigs-Universitaet Freiburg , Freiburg , Germany
| | - Na Hong Qiu
- a Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd , Basel , Switzerland and
| | - Stephen Fowler
- a Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd , Basel , Switzerland and
| | - Thomas Singer
- a Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd , Basel , Switzerland and
| | - Franz Schuler
- a Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd , Basel , Switzerland and
| | - Christoph Funk
- a Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd , Basel , Switzerland and
| | - Simone Schadt
- a Pharmaceutical Sciences, Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd , Basel , Switzerland and
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Metabolic profile of 2-(2-hydroxypropanamido) benzoic acid in rats by ultra high performance liquid chromatography combined with Fourier transform ion cyclotron resonance mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 993-994:60-8. [DOI: 10.1016/j.jchromb.2015.04.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 04/19/2015] [Accepted: 04/25/2015] [Indexed: 11/23/2022]
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Pettersen AA, Arnesen H, Seljeflot I. A brief review on high on-aspirin residual platelet reactivity. Vascul Pharmacol 2015; 67-69:6-9. [PMID: 25869498 DOI: 10.1016/j.vph.2015.03.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 03/17/2015] [Accepted: 03/26/2015] [Indexed: 02/02/2023]
Abstract
Although aspirin is effective in secondary prevention in coronary heart disease, new thromboembolic events in patients on aspirin are frequently seen. In trials on aspirin-treated patients, platelet function tests have revealed large variability in platelet aggregation. This phenomenon has been named aspirin resistance, aspirin non-responsiveness or high-on-aspirin residual platelet reactivity. The mechanism of aspirin antiplatelet effect is due to the inhibition of cyclooxygenase-1 enzyme in platelets. In some trials, almost all patients on aspirin have a very low level of serum thromboxane B2, indicating that the measured platelet reactivity in aspirin-treated patients might be due to platelet activation via other pathways, such as ADP or thrombin. The prevalence of real aspirin resistance seems to be very low, and probably the term "high-on-aspirin residual platelet reactivity" should be preferred to describe this phenomenon.
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Affiliation(s)
- A A Pettersen
- Center for Clinical Heart Research, Department of Cardiology, Oslo University Hospital, Ullevaal, Norway; Department of Medicine, Vestre Viken HF, Ringerike Hospital, Hønefoss, Norway.
| | - H Arnesen
- Center for Clinical Heart Research, Department of Cardiology, Oslo University Hospital, Ullevaal, Norway; Faculty of Medicine, University of Oslo, Oslo, Norway
| | - I Seljeflot
- Center for Clinical Heart Research, Department of Cardiology, Oslo University Hospital, Ullevaal, Norway; Faculty of Medicine, University of Oslo, Oslo, Norway
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Bojić M, Sedgeman CA, Nagy LD, Guengerich FP. Aromatic hydroxylation of salicylic acid and aspirin by human cytochromes P450. Eur J Pharm Sci 2015; 73:49-56. [PMID: 25840124 DOI: 10.1016/j.ejps.2015.03.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 01/28/2015] [Accepted: 03/23/2015] [Indexed: 10/23/2022]
Abstract
Aspirin (acetylsalicylic acid) is a well-known and widely-used analgesic. It is rapidly deacetylated to salicylic acid, which forms two hippuric acids-salicyluric acid and gentisuric acid-and two glucuronides. The oxidation of aspirin and salicylic acid has been reported with human liver microsomes, but data on individual cytochromes P450 involved in oxidation is lacking. In this study we monitored oxidation of these compounds by human liver microsomes and cytochrome P450 (P450) using UPLC with fluorescence detection. Microsomal oxidation of salicylic acid was much faster than aspirin. The two oxidation products were 2,5-dihydroxybenzoic acid (gentisic acid, documented by its UV and mass spectrum) and 2,3-dihydroxybenzoic acid. Formation of neither product was inhibited by desferrioxamine, suggesting a lack of contribution of oxygen radicals under these conditions. Although more liphophilic, aspirin was oxidized less efficiently, primarily to the 2,5-dihydroxy product. Recombinant human P450s 2C8, 2C9, 2C19, 2D6, 2E1, and 3A4 all catalyzed the 5-hydroxylation of salicylic acid. Inhibitor studies with human liver microsomes indicated that all six of the previously mentioned P450s could contribute to both the 5- and 3-hydroxylation of salicylic acid and that P450s 2A6 and 2B6 have contributions to 5-hydroxylation. Inhibitor studies indicated that the major human P450 involved in both 3- and 5-hydroxylation of salicylic acid is P450 2E1.
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Affiliation(s)
- Mirza Bojić
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232-0146, USA.
| | - Carl A Sedgeman
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232-0146, USA.
| | - Leslie D Nagy
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232-0146, USA.
| | - F Peter Guengerich
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232-0146, USA.
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36
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Thomas SS, Makar KW, Li L, Zheng Y, Yang P, Levy L, Rudolph RY, Lampe PD, Yan M, Markowitz SD, Bigler J, Lampe JW, Potter JD. Tissue-specific patterns of gene expression in the epithelium and stroma of normal colon in healthy individuals in an aspirin intervention trial. BMC MEDICAL GENETICS 2015; 16:18. [PMID: 25927723 PMCID: PMC4422425 DOI: 10.1186/s12881-015-0161-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 02/26/2015] [Indexed: 12/21/2022]
Abstract
Background Regular aspirin use reduces colon adenoma and carcinoma incidence. UDP-glucuronosyltransferases (UGT) are involved in aspirin metabolism and clearance, and variant alleles in UGT1A6 have been shown to alter salicylic acid metabolism and risk of colon neoplasia. Methods In a randomized, cross-over, placebo-controlled trial of 44 healthy men and women, homozygous for UGT1A6*1 or UGT1A6*2, we explored differences between global epithelial and stromal expression, using Affymetrix U133 + 2.0 microarrays and tested effects of 60-day aspirin supplementation (325 mg/d) on epithelial and stromal gene expression and colon prostaglandin E2 (PGE2) levels. Results No statistically significant differences in gene expression were observed in response to aspirin or UGT1A6 genotype, but tissue PGE2 levels were lower with aspirin compared to placebo (p <0.001). Transcripts differentially expressed between epithelium and stroma (N = 4916, P <0.01, false discovery rate <0.001), included a high proportion of genes involved in cell signaling, cellular movement, and cancer. Genes preferentially expressed in epithelium were involved in drug and xenobiotic metabolism, fatty acid and lipid metabolism, apoptosis signaling, and ion transport. Genes preferentially expressed in stroma included those involved in inflammation, cellular adhesion, and extracellular matrix production. Wnt-Tcf4 pathway genes were expressed in both epithelium and stroma but differed by subcellular location. Conclusions These results suggest that, in healthy individuals, subtle effects of aspirin on gene expression in normal colon tissue are likely overwhelmed by inter-individual variability in microarray analyses. Differential expression of critical genes between colonic epithelium and stroma suggest that these tissue types need to be considered separately. Electronic supplementary material The online version of this article (doi:10.1186/s12881-015-0161-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sushma S Thomas
- Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA.
| | - Karen W Makar
- Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA.
| | - Lin Li
- Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA.
| | - Yingye Zheng
- Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA.
| | - Peiying Yang
- M.D. Anderson Cancer Center, Houston, TX, 77030, USA.
| | - Lisa Levy
- Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA.
| | | | - Paul D Lampe
- Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA.
| | - Min Yan
- Case Western Reserve University School of Medicine, Cincinnati, OH, 44106, USA.
| | - Sanford D Markowitz
- Case Western Reserve University School of Medicine, Cincinnati, OH, 44106, USA.
| | | | - Johanna W Lampe
- Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA.
| | - John D Potter
- Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA.
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Rouhou MC, Charest-Tardif G, Haddad S. In vivo effects of naproxen, salicylic acid, and valproic acid on the pharmacokinetics of trichloroethylene and metabolites in rats. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2015; 78:671-684. [PMID: 26039745 DOI: 10.1080/15287394.2015.1020977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
It was recently demonstrated that some drugs modulate in vitro metabolism of trichloroethylene (TCE) in humans and rats. The objective was to assess in vivo interactions between TCE and three drugs: naproxen (NA), valproic acid (VA), and salicylic acid (SA). Animals were exposed to TCE by inhalation (50 ppm for 6 h) and administered a bolus dose of drug by gavage, equivalent to 10-fold greater than the recommended daily dose. Samples of blood, urine, and collected tissues were analyzed by headspace gas chromatography coupled to an electron capture detector for TCE and metabolites (trichloroethanol [TCOH] and trichloroacetate [TCA]) levels. Coexposure to NA and TCE significantly increased (up to 50%) total and free TCOH (TCOHtotal and TCOHfree, respectively) in blood. This modulation may be explained by an inhibition of glucuronidation. VA significantly elevated TCE levels in blood (up to 50%) with a marked effect on TCOHtotal excretion in urine but not in blood. In contrast, SA produced an increase in TCOHtotal levels in blood at 30, 60, and 90 min and urine after coexposure. Data confirm in vitro observations that NA, VA, and SA affect in vivo TCE kinetics. Future efforts need to be directed to evaluate whether populations chronically medicated with the considered drugs display greater health risks related to TCE exposure.
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Affiliation(s)
- Mouna Cheikh Rouhou
- a Sciences Biologiques , Université du Québec à Montréal , Montréal , Quebec , Canada
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Raymond GM, Bassingthwaighte JB. Diverse Data Sets Can Yield Reliable Information through Mechanistic Modeling: Salicylic Acid Clearance. ACTA ACUST UNITED AC 2015; 7:457-476. [PMID: 27308260 PMCID: PMC4905731 DOI: 10.9734/bjpr/2015/19156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This is a practical example of a powerful research strategy: putting together data from studies covering a diversity of conditions can yield a scientifically sound grasp of the phenomenon when the individual observations failed to provide definitive understanding. The rationale is that defining a realistic, quantitative, explanatory hypothesis for the whole set of studies, brings about a “consilience” of the often competing hypotheses considered for individual data sets. An internally consistent conjecture linking multiple data sets simultaneously provides stronger evidence on the characteristics of a system than does analysis of individual data sets limited to narrow ranges of conditions. Our example examines three very different data sets on the clearance of salicylic acid from humans: a high concentration set from aspirin overdoses; a set with medium concentrations from a research study on the influences of the route of administration and of sex on the clearance kinetics, and a set on low dose aspirin for cardiovascular health. Three models were tested: (1) a first order reaction, (2) a Michaelis-Menten (M-M) approach, and (3) an enzyme kinetic model with forward and backward reactions. The reaction rates found from model 1 were distinctly different for the three data sets, having no commonality. The M-M model 2 fitted each of the three data sets but gave a reliable estimates of the Michaelis constant only for the medium level data (Km = 24±5.4 mg/L); analyzing the three data sets together with model 2 gave Km = 18±2.6 mg/L. (Estimating parameters using larger numbers of data points in an optimization increases the degrees of freedom, constraining the range of the estimates). Using the enzyme kinetic model (3) increased the number of free parameters but nevertheless improved the goodness of fit to the combined data sets, giving tighter constraints, and a lower estimated Km = 14.6±2.9 mg/L, demonstrating that fitting diverse data sets with a single model improves confidence in the results. This modeling effort is also an example of reproducible science available at html://www.physiome.org/jsim/models/webmodel/NSR/SalicylicAcidClearance
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Affiliation(s)
- G M Raymond
- Department of Bioengineering, University of Washington, Seattle, USA
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Hu DG, Meech R, McKinnon RA, Mackenzie PI. Transcriptional regulation of human UDP-glucuronosyltransferase genes. Drug Metab Rev 2014; 46:421-58. [PMID: 25336387 DOI: 10.3109/03602532.2014.973037] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Glucuronidation is an important metabolic pathway for many small endogenous and exogenous lipophilic compounds, including bilirubin, steroid hormones, bile acids, carcinogens and therapeutic drugs. Glucuronidation is primarily catalyzed by the UDP-glucuronosyltransferase (UGT) 1A and two subfamilies, including nine functional UGT1A enzymes (1A1, 1A3-1A10) and 10 functional UGT2 enzymes (2A1, 2A2, 2A3, 2B4, 2B7, 2B10, 2B11, 2B15, 2B17 and 2B28). Most UGTs are expressed in the liver and this expression relates to the major role of hepatic glucuronidation in systemic clearance of toxic lipophilic compounds. Hepatic glucuronidation activity protects the body from chemical insults and governs the therapeutic efficacy of drugs that are inactivated by UGTs. UGT mRNAs have also been detected in over 20 extrahepatic tissues with a unique complement of UGT mRNAs seen in almost every tissue. This extrahepatic glucuronidation activity helps to maintain homeostasis and hence regulates biological activity of endogenous molecules that are primarily inactivated by UGTs. Deciphering the molecular mechanisms underlying tissue-specific UGT expression has been the subject of a large number of studies over the last two decades. These studies have shown that the constitutive and inducible expression of UGTs is primarily regulated by tissue-specific and ligand-activated transcription factors (TFs) via their binding to cis-regulatory elements (CREs) in UGT promoters and enhancers. This review first briefly summarizes published UGT gene transcriptional studies and the experimental models and tools utilized in these studies, and then describes in detail the TFs and their respective CREs that have been identified in the promoters and/or enhancers of individual UGT genes.
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Affiliation(s)
- Dong Gui Hu
- Department of Clinical Pharmacology and Flinders Centre for Innovation in Cancer, Flinders University School of Medicine, Flinders Medical Centre , Bedford Park, SA , Australia
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Scherer D, Koepl LM, Poole EM, Balavarca Y, Xiao L, Baron JA, Hsu L, Coghill AE, Campbell PT, Kleinstein SE, Figueiredo JC, Lampe JW, Buck K, Potter JD, Kulmacz RJ, Jenkins MA, Hopper JL, Win AK, Newcomb PA, Ulrich CM, Makar KW. Genetic variation in UGT genes modify the associations of NSAIDs with risk of colorectal cancer: colon cancer family registry. Genes Chromosomes Cancer 2014; 53:568-78. [PMID: 24677636 DOI: 10.1002/gcc.22167] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 03/06/2014] [Indexed: 12/21/2022] Open
Abstract
The use of non-steroidal anti-inflammatory drugs (NSAIDs) is associated with reduced risk of colorectal neoplasia. Previous studies have reported that polymorphisms in NSAID-metabolizing enzymes central to NSAID metabolism including UDP-glucuronosyltransferases (UGT) and cytochrome P450 (CYP) 2C9 may modify this protective effect. We investigated whether 35 functionally relevant polymorphisms within CYP2C9 and UGT genes were associated with colorectal cancer risk or modified the protective effect of NSAIDs on colorectal cancer susceptibility, using 1,584 colorectal cancer cases and 2,516 unaffected sibling controls from the Colon Cancer Family Registry. A three-SNP genotype in UGT1A6 (G-A-A; Ala7-Thr181-Arg184) and the Asp85 variant in UGT2B15 increased the risk of colorectal cancer (OR 3.87; 95% CI 1.04-14.45 and OR 1.34; 95% CI 1.10-1.63, respectively). We observed interactions between UGT1A3 Thr78Thr (A>G) and NSAID use (P-interaction = 0.02), a three-SNP genotype within UGT2B4 and ibuprofen use (P-interaction = 0.0018), as well as UGT2B15 Tyr85Asp (T>G) and aspirin use (P-interaction = 0.01). The interaction with the UGT2B4 and the UGT2B15 polymorphisms were noteworthy at the 25% FDR level. This study highlights the need for further pharmacogenetic studies to identify individuals who might benefit from NSAID use as part of developing effective strategies for prevention of colorectal neoplasia. © 2014 Wiley Periodicals, Inc.
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Affiliation(s)
- Dominique Scherer
- Department of Preventive Oncology, National Center for Tumor Diseases and German Cancer Research Center, 69120, Heidelberg, Germany
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Wang L, Halquist MS, Sweet DH. Simultaneous determination of gallic acid and gentisic acid in organic anion transporter expressing cells by liquid chromatography–tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 937:91-6. [DOI: 10.1016/j.jchromb.2013.08.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 07/26/2013] [Accepted: 08/16/2013] [Indexed: 10/26/2022]
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The Effects of the Antiplatelet Agents, Aspirin and Naproxen, on Pharmacokinetics and Pharmacodynamics of the Anticoagulant Edoxaban, a Direct Factor Xa Inhibitor. J Cardiovasc Pharmacol 2013; 62:212-21. [DOI: 10.1097/fjc.0b013e3182970991] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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43
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Pshenichnyuk SA, Modelli A. Electron attachment to antipyretics: possible implications of their metabolic pathways. J Chem Phys 2012; 136:234307. [PMID: 22779593 DOI: 10.1063/1.4727854] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The empty-level structures and formation of negative ion states via resonance attachment of low-energy (0-15 eV) electrons into vacant molecular orbitals in a series of non-steroidal anti-inflammatory drugs (NSAIDs), namely aspirin, paracetamol, phenacetin, and ibuprofen, were investigated in vacuo by electron transmission and dissociative electron attachment (DEA) spectroscopies, with the aim to model the behavior of these antipyretic agents under reductive conditions in vivo. The experimental findings are interpreted with the support of density functional theory calculations. The negative and neutral fragments formed by DEA in the gas phase display similarities with the main metabolites of these commonly used NSAIDs generated in vivo by the action of cytochrome P450 enzymes, as well as with several known active agents. It is concluded that xenobiotic molecules which possess pronounced electron-accepting properties could in principle follow metabolic pathways which parallel the gas-phase dissociative decay channels observed in the DEA spectra at incident electron energies below 1 eV. Unwanted side effects as, e.g., hepatoxicity or carcinogenicity produced by the NSAIDs under study in human organism are discussed within the "free radical model" framework, reported earlier to describe the toxic action of the well-known model toxicant carbon tetrachloride.
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Affiliation(s)
- Stanislav A Pshenichnyuk
- Institute of Molecule and Crystal Physics, Ufa Research Centre, Russian Academy of Sciences, Prospekt Oktyabrya 151, 450075 Ufa, Russia.
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44
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Wang L, Sweet DH. Potential for food–drug interactions by dietary phenolic acids on human organic anion transporters 1 (SLC22A6), 3 (SLC22A8), and 4 (SLC22A11). Biochem Pharmacol 2012; 84:1088-95. [DOI: 10.1016/j.bcp.2012.07.027] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 07/21/2012] [Accepted: 07/25/2012] [Indexed: 02/08/2023]
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45
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Dressman JB, Nair A, Abrahamsson B, Barends DM, Groot D, Kopp S, Langguth P, Polli JE, Shah VP, Zimmer M. Biowaiver Monograph for Immediate-Release Solid Oral Dosage Forms: Acetylsalicylic Acid. J Pharm Sci 2012; 101:2653-67. [DOI: 10.1002/jps.23212] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Revised: 05/03/2012] [Accepted: 05/04/2012] [Indexed: 11/11/2022]
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Aspirin metabolites are GPR35 agonists. Naunyn Schmiedebergs Arch Pharmacol 2012; 385:729-37. [PMID: 22526472 DOI: 10.1007/s00210-012-0752-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Accepted: 03/30/2012] [Indexed: 12/14/2022]
Abstract
Aspirin is widely used as an anti-inflammatory, anti-platelet, anti-pyretic, and cancer-preventive agent; however, the molecular mode of action is unlikely due entirely to the inhibition of cyclooxygenases. Here, we report the agonist activity of several aspirin metabolites at GPR35, a poorly characterized orphan G protein-coupled receptor. 2,3,5-Trihydroxybenzoic acid, an aspirin catabolite, was found to be the most potent GPR35 agonist among aspirin metabolites. Salicyluric acid, the main metabolite of aspirin, was also active. These results suggest that the GPR35 agonist activity of certain aspirin metabolites may contribute to the clinical features of aspirin.
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Chan AT, Hsu M, Zauber AG, Hawk ET, Bertagnolli MM. The influence of UGT1A6 variants and aspirin use in a randomized trial of celecoxib for prevention of colorectal adenoma. Cancer Prev Res (Phila) 2012; 5:61-72. [PMID: 22030088 PMCID: PMC3252487 DOI: 10.1158/1940-6207.capr-11-0337] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Aspirin and celecoxib prevent colorectal adenoma recurrence. Genetic variants in the UGT1A6 enzyme are associated with delayed aspirin metabolism and greater chemopreventive efficacy. We examined the effect of combining aspirin and celecoxib in relation to UGT1A6 T181A and R184S variants among 1,647 patients in the Adenoma Prevention with Celecoxib (APC) trial who were stratified according to the use of low-dose aspirin after removal of adenomas and randomized to placebo, 200-mg twice daily, or 400-mg twice daily celecoxib for 3 years. Patients underwent follow-up colonoscopies at 1 and 3 years to assess on-treatment efficacy. At 5 years, 538 patients underwent a colonoscopy to assess risk of recurrence after treatment was discontinued for at least 1 year. During treatment, the relative risk (RR) of recurrent adenoma was 0.68 [95% confidence interval (CI), 0.59-0.79] for 200-mg twice daily celecoxib and 0.54 (95% CI, 0.46-0.64) for 400-mg twice daily celecoxib compared with placebo. Aspirin use was not independently associated with recurrent adenoma (RR, 0.98, 95% CI, 0.86-1.15). These results did not vary according to UGT1A6 genotype. However, among those with a variant UGT1A6 genotype on aspirin, the RR of adenoma was 1.60 (95% CI, 0.81-3.15) after withdrawal of 200-mg twice daily and 1.98 (95% CI, 1.06-3.70) after withdrawal of 400-mg twice daily celecoxib compared with withdrawal of placebo. In contrast, there was no increased risk associated with discontinuing celecoxib among any other groups. Concurrent use of low-dose aspirin does not influence the efficacy of celecoxib in adenoma prevention. However, discontinuing celecoxib among aspirin-using individuals who initially developed adenoma despite a UGT1A6 variant genotype resulted in rapid reemergence of disease.
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Affiliation(s)
- Andrew T Chan
- Gastrointestinal Unit, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA.
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48
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Navarro SL, Saracino MR, Makar KW, Thomas SS, Li L, Zheng Y, Levy L, Schwarz Y, Bigler J, Potter JD, Lampe JW. Determinants of aspirin metabolism in healthy men and women: effects of dietary inducers of UDP-glucuronosyltransferases. JOURNAL OF NUTRIGENETICS AND NUTRIGENOMICS 2011; 4:110-8. [PMID: 21625173 DOI: 10.1159/000327782] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Accepted: 03/21/2011] [Indexed: 12/16/2022]
Abstract
BACKGROUND/AIMS Interindividual variation in aspirin (ASA) metabolism is attributed to concomitant use of drugs or alcohol, urine pH, ethnicity, sex, and genetic variants in UDP-glucuronosyltransferases (UGT). Little is known about the effects of diet. METHODS We evaluated cross-sectionally whether urinary excretion of ASA and its metabolites [salicylic acid (SA), salicyluric acid (SUA) phenolic glucuronide (SUAPG), salicylic acid acyl glucuronide (SAAG) and salicylic acid phenolic glucuronide (SAPG)] differed by UGT1A6 genotype and dietary factors shown to induce UGT. Following oral treatment with 650 mg ASA, urine was collected over 8 h in 264 men and 264 women (21-45 years old). RESULTS There were statistically significant differences in metabolites excreted between sexes and ethnicities. Men excreted more SUA; women more ASA (p = 0.03), SA, SAAG and SAPG (p ≤ 0.001 for all). Compared to Caucasians, Asians excreted more ASA, SA and SAAG, and less SUA and SUAPG (p ≤ 0.03 for all); African-Americans excreted more SAAG and SAPG and less SUA (p ≤ 0.04). There was no effect of UGT1A6 genotypes. Increased ASA and decreased SUAPG excretion was observed with increased servings of vegetables (p = 0.008), specifically crucifers (p = 0.05). CONCLUSION Diet may influence the pharmacokinetics of ASA, but effects may be through modulation of glycine conjugation rather than glucuronidation.
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Affiliation(s)
- Sandi L Navarro
- Fred Hutchinson Cancer Research Center, University of Washington, Seattle, Wash., USA
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49
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Carbonell N, Verstuyft C, Massard J, Letierce A, Cellier C, Deforges L, Saliba F, Delchier JC, Becquemont L. CYP2C9*3 Loss-of-Function Allele Is Associated With Acute Upper Gastrointestinal Bleeding Related to the Use of NSAIDs Other Than Aspirin. Clin Pharmacol Ther 2010; 87:693-8. [DOI: 10.1038/clpt.2010.33] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Doi H, Horie T. Salicylic acid-induced hepatotoxicity triggered by oxidative stress. Chem Biol Interact 2009; 183:363-8. [PMID: 19948161 DOI: 10.1016/j.cbi.2009.11.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2009] [Revised: 11/17/2009] [Accepted: 11/21/2009] [Indexed: 11/30/2022]
Abstract
Salicylic acid is a widely used nonsteroidal anti-inflammatory drug (NSAID). But it is known to cause serious liver damage occasionally. Mitochondrial dysfunction and oxidative stress are predicted to be the major factors of salicylic acid-induced liver injury. We investigated the influence of salicylic acid on ATP contents, oxygen consumption and lipid peroxidation in the presence of the same concentration of salicylic acid. Leakage of lactate dehydrogenase (LDH) was significantly higher in the presence of 5mM salicylic acid than in its absence. Salicylic acid-induced thiobarbituric acid-reactive substance (TBARS) formation and spontaneous chemiluminescence (CL) in rat hepatocytes, whereas antioxidants, such as promethazine (PMZ) and N,N-diphenylphenylenediamine (DPPD), suppressed both TBARS formation and LDH leakage. TBARS formation in rat liver microsomes was suppressed by diethyldithiocarbamate (a specific inhibitor of cytochrome P450 (CYP)2E1) and diclofenac (a specific inhibitor of CYP2C11). These results suggest that salicylic acid-induced lipid peroxidation was related to oxidative metabolism mediated by CYP2E1 and CYP2C11. On the other hand, 5mM salicylic acid induced a drastic decrease of ATP contents in rat isolated hepatocytes. Furthermore, mitochondrial respiration control ratio (RC ratio), calculated by State 3/State 4 also decreased with the increase of salicylic acid concentration. These findings suggest that salicylic acid would trigger mitochondrial dysfunction and cause ATP decrease, leading to lethal liver cell injury by lipid peroxidation, although this hypothesis remains to be elucidated in vivo.
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Affiliation(s)
- Hirokazu Doi
- Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, Japan
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